A 40 Inch telescope and a 16 Inch telescope were in installed at Lindheimer Astrophysical Center in 1967. This facility was torn down in 1995 and the telescopes were donated to Lowell Observatory.
Information and photos are from http://ciera.northwestern.edu/Observatory/lindheimer-history.php

For additional photos and information, visit: http://www.physics.arizona.edu/~milsom/photo/states/northselected.html